目标:确定营养风险,根据SCREEN-8的测量,在调整了关键的人口统计学和健康变量后,可以预测社区生活老年人的3年强度和绩效指标.还确定了性别分层分析。
方法:来自加拿大衰老纵向研究(CLSA)的基线和3年随访数据的队列研究。
方法:纳入基线时55岁及以上的参与者(n=22,502);排除在任一时间点报告鼻饲或腹腔管喂养的参与者(n=26)。可用于分析的参与者的最终样本略有不同,具体取决于三个结果变量的完成情况。按列表删除用于营养风险和协变量,以得出可用于分析的样本(n=17,250)。
方法:使用有效可靠的SCREEN-8工具来测量营养风险。SCREEN-8的最低和最高得分分别为0和48,得分较低表明营养风险较大。基线SCREEN-8评分用于分析。握力,3年随访时评估的起椅测试时间和步态速度是力量和表现结果.使用欧洲老年人肌肉减少症工作组2概述的标准来确定握力的低性能(男性<27公斤,女性<16公斤),起椅测试时间(>15秒)和步态速度(≤0.8m/s)。
结果:一半的参与者为女性(49.4%),平均年龄为66.7岁(SD7.9)。平均SCREEN-8评分为39.2(SD6.0)。低握力,椅子上升测试性能和步态速度分别为18.5%,19.6%和29.3%的参与者,分别。在调整协变量后(例如,性别,年龄,education),SCREEN-8评分与握力强度显著相关(F=11.21,p=.001;OR=0.98,CI[0.97,0.99]),椅子上升时间(F=5.97,p=.015;OR=0.99,CI[0.97,0.997]),和步态速度(F=9.99,p=.002;OR=0.98,CI[0.97,0.99])。在性别分层分析中也看到了类似的解释,虽然起椅时间并不显著。年龄,身体质量指数,生活空间指数评分和自评健康状况与所有结果指标一致相关。
结论:营养风险,用SCREEN-8衡量,显著预测了3年的实力和业绩指标。更大的营养风险与握力低表现的几率增加有关,椅子上升测试,和步态速度。未来的研究应在初级保健机构中实施营养风险筛查,并对有风险的客户进行后续评估和治疗,以确定筛查后实施的营养干预措施是否可以延迟与年龄相关的力量和表现损失。
Determine if nutrition risk, as measured by SCREEN-8 is predictive of 3-year strength and performance indicators among community-living older adults after adjusting for key demographic and health variables. Sex-stratified analyses were also determined.
Cohort study with baseline and 3-year follow-up data from the Canadian Longitudinal Study on Aging (CLSA).
Participants 55 years and older at baseline were included (n = 22,502); those who reported nasogastric or abdominal tube feeding at either timepoint were excluded (n = 26). The final sample of participants available for analyses slightly varied depending on completion of the three outcome variables. List-wise deletion was used for nutrition risk and covariates to arrive at the sample available for analysis (n = 17,250).
The valid and reliable SCREEN-8 tool was used to measure nutrition risk. The minimum and maximum score of SCREEN-8 is 0 and 48, respectively, with lower scores indicating greater nutrition risk. Baseline SCREEN-8 score was used in analyses. Grip strength, chair rise test time and gait speed assessed at the 3-year follow-up were the strength and performance outcomes. Criteria outlined by the European Working Group on Sarcopenia in Older People 2 were used to determine low performance for grip strength (<27 kg for males and <16 kg for females), chair rise test time (>15 seconds) and gait speed (≤0.8 m/s).
Half of participants were female (49.4%) and mean age was 66.7 years (SD 7.9). Mean SCREEN-8 score was 39.2 (SD 6.0). Low grip strength, chair rise test performance and gait speed were found in 18.5%, 19.6% and 29.3% of participants, respectively. After adjusting for covariates (e.g., sex, age, education), SCREEN-8 score was significantly associated with grip strength (F = 11.21, p = .001; OR = 0.98, CI [0.97, 0.99]), chair rise time (F = 5.97, p = .015; OR = 0.99, CI [0.97, 0.997]), and gait speed (F = 9.99, p = .002; OR = 0.98, CI [0.97, 0.99]). Similar interpretation was seen in sex-stratified analyses, although chair rise time was not significant. Age, body mass index, Life Space Index Score and self-rated health were consistently associated with all outcome measures.
Nutrition risk, as measured by SCREEN-8, significantly predicted 3-year strength and performance measures. Greater nutrition risk is associated with an increased odds of low performance on grip strength, chair rise test, and gait speed. Future research should implement nutrition risk screening in primary care settings with subsequent assessment and treatment for at risk clients to determine if nutrition interventions implemented post screening can delay age-related losses in strength and performance.